<header>
  <text>Books:</text>
  <hamburger/>            
</header>
<div.scrollable>
  <books-view/>
  <section.collapsible full #test>
    <header(tags)><span.name>Tags</span></header>
    <tags-view(tags)/>
  </section>
  <section.collapsible full>
    <header(atts)><span.name>Attributes</span></header>
    <tags-view(atts)/>
  </section>
</div>
<!--<footer>footer</footer>-->
